Question Answering

"Questions are asked and answered every day. Question answering (QA) technology aims to deliver the same facility online. It goes further than the more familiar search based on keywords (as in Google, Yahoo, and other search engines), in attempting to recognize what a question expresses and to respond with an actual answer. This simplifies things for users in two ways. First, questions do not often translate into a simple list of keywords. ...Second, QA takes responsibility for providing answers, rather than a searchable list of links to potentially relevant documents (web pages), highlighted by snippets of text that show how the query matched the documents."
 - from Bonnie Webber & Nick Webb. Question Answering. The Handbook of Computational Linguistics and Natural Language Processing. Edited by Alexander Clark, Chris Fox, Shalom Lappin. 2010, Wiley.


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